/* 
 * Copyright [2017] [Alex/LiBo(libo2dev.aliyun.com/alex.link@foxmail.com)]
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.hyts.sdkhttp.util;

/**  
 * @Title StringUtil.java  
 * @Package com.hyts.http.util  
 * @Description String 字符串操作工具类  
 * @author LiBo/Alex  
 * @date 2018年3月12日  
 * @version V1.0  
 */
public final class StringUtil {

	/**  
	 * @Title: isEmpty  
	 * @Description: isEmpty  
	 * @param @param str
	 * @param @return    参数  
	 * @return boolean    返回类型  
	 * @throws  
	 */ 
	public static boolean isEmpty(String str)
	{
		return str == null || "".equals(str) || "null".equals(str) || str.trim().length() == 0 ;
	}
	
	/**  
	 * @Title: isNotEmpty  
	 * @Description: isNotEmpty  
	 * @param @param str
	 * @param @return    参数  
	 * @return boolean    返回类型  
	 * @throws  
	 */ 
	public static boolean isNotEmpty(String str)
	{
		return !isEmpty(str);
	}


}
